304 



STKK\<;TII OF STKKL. 



190. Tests of Fluid-compressed Steel. Some interest- 

 ing results are given by Mr. W. H. Greenwood || as to tli<- 

 relative strength of stael from fluid-compressed ingots, 

 and steel from ingots having the same composition and 

 treatment but not having been compressed. The results 

 show, what is always held to be the case, that in all 

 respects the fluid-compressed steel is better than that 

 from the uncompressed ingots. 



TABLE I. COMPARISON OF THE AVERAGES OF Lox<;i- 

 1 1 DINAL TESTS OF STRENGTH FROM AN UNCOMPRESSED 

 INGOT, WITH THE CORRESPONDING TESTS FROM 

 PRESSED INGOTS. 



In addition to the above results of tests of the metal 

 as taken direct from the ingot without it having under- 

 gone any subsequent treatment, Mr. Greenwood quotes 

 the following, obtained from fluid-compressed steel which 

 has undergone the operations of forging and hardening : 



Min. Proc. Inst. C.E., vol. xcviii. 



